THORNAPPLE TOWNSHIP, Mich. (WOOD) — Thornapple Kellogg Schools closed all schools and sent students home Thursday after the district was notified of a threat. A suspect is now in custody, authorities say.

Due to a threat against the high school and how late the district was notified of the threat, the superintendent’s office said it decided to close all schools and send students back home.

Superintendent Craig McCarthy told News 8 that a parent came across a threat posted on social media then notified an assistant principal around 6:45 a.m. Thursday.

A “person of interest” has been taken into custody, the school said in a Facebook post. The Barry County Sheriff’s Office said in a release that a subject is in custody on charges that are unrelated. It did not say what those charges are.

“At this time it is not believed there is any continued threats to the school or public,” the sheriff’s office said.

The school will be open again on Friday.

Multiple agencies, including the US Marshals Task Force, assisted the sheriff’s office.

McCarthy posted a letter to parents and staff on the district’s website that addresses rumors surrounding Thursday’s incident:

“Thank you all for your patience and understanding this morning. It’s important that we take any threat to the safety of our students and staff seriously, therefore it was necessary to close today.

The Barry County Sheriff Department and the Michigan State Police have been investigating the situation that resulted in our last-minute closing of the school district today. This issue has been resolved and the person of interest has been apprehended.

Based on the work completed by the Barry County Sheriff Department and the Michigan State Police, we will be in session for school on Friday, January 21, 2022.

We do know the following regarding the threat and the individual involved.   

The individual is NOT a student at TK Schools.  

This incident is NOT related to last week’s shelter-in-place at the high school. 

Per law enforcement, no further details may be shared at this time. 

In addition to our incident this morning we are also dealing with rumors, which have a tendency to take on a life of their own. Therefore, I want to correct a rumor and avoid causing any further concern.  

The current rumor circulating is that bullets were found in the high school.  

There was one bullet found on the floor of a classroom in the high school, earlier this week.  

The high school administration and one of our school resource officers investigated the situation and determined how the object made it into the building.

The individual responsible for bringing the item has met with building administrators; discipline will not be shared.

This is not connected to this morning’s incident. 

We thank you for your patience and understanding today. We also want to thank our local police agencies for their immediate response. Thank you for your continued support of TK Schools.”

Craig McCarthy, Thornapple Kellogg Schools superintendent